Layout management...
By default, no changes have to be made here.
In the Window menu, click on Layout management.... [Layout management...]
-> The same-named dialog box is opened.
Select the view type on the left and the desired arrangement on the right.
Click Load.
-> The desired layout is immediately loaded.
Recover standard
Perhaps you moved single docking windows just to try out something and now you want to go back to the standard settings?
Simply click on Restore default [Recover standard].